Cultivator shield regulator



Ocf. 10, 1939. w. ADAMS 2,175,512

CULTIVATOR SHIELD REGULATOR Filed Feb. 25, 1939 3 Sheets-Sheet 1 Inventor %Zfer 4 434/7? .9

Attorneys Oct. 10, 1939. w ADAMS 2,175,512

CULTIVATOR SHIELD REGULATOR Filed Feb. 25, 1959 3 Sheets-Sheet 2 Inventor Wlier fldams A tiomeys Oct. 10, 1939. w. ADAMS CULTIVATOR SHIELD REGULATOR Filed Feb. 25, 1939 SSheets-Sheet 3 v v [nuenior A iiomeys 2 Patented Oct. 10, 1939 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to cultivator shield regulators, and has for the primary object the provision of a device of this character which may be easily and quickly installed on a tractor cultivator of the type having gangs of cultivating elements and shields therefor and which will permit the operator Without interrupting the cultivating operation, to raise and lower the shields to meet different ground conditions so that the best cultivating operations may be had and which will maintain the shields in any'of the positions in which they may be adjusted without manual attention.

With these and other objects in view, the invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure 1 is a top plan view illustrating a tractor cultivator equipped with a shield regulator constructed in accordance with my invention.

5 Figure 2 is a side elevation illustrating the same.

Figure 3 is a top plan View, partly in section, illustrating the means of mounting a portion of the present invention on the tractor and consisting primarily of the hand Wheel and cable winding shaft.

Figure 4 is a fragmentary sectional view illustrating a portion of the clamp used for supporting the cable winding shaft on the tractor.

Figure 5 is a fragmentary sectional view illustrating a tensioning device, taken on the line 55 of Figure 3.

Figure 6 is a side elevation illustrating a connecting bracket for joining a pair of shields.

Figure '7 is a fragmentary vertical sectional view illustrating the bracket of said shields, and showing the means of adjustment thereto.

Figure 8 is a side elevation, partly in section, illustrating a pulley supporting bracket.

5 Referring in detail to the drawings, the numeral 5 indicates a conventional type of tractor on which are mounted gangs of cultivators 6, the cultivating elements of said gangs being indicated by the character I. The gangs of culti- 50 vators are arranged for operation at opposite sides of the tractor and operating in conjunction with the cultivating elements 1 are shields 8 arranged in pairs. The pairs of shields are joined or connected together by brackets 9 each com 55 posed of L shaped elements 10, the horizontal portions of which are arranged in overlapping relation and provided with a series of openings I I through which bolts I2 may extend for the purpose of permitting the pairs of shields to be adjusted toward and from each other. Also ex- 6 tending through the brackets 9 are eye bolts l3.

Mounted on the gangs 6 are substantially U- shaped brackets M on which are pivotally secured sheaves or pulleys l5 having trained thereover cables or flexible elements H5. The cables 10 or flexible elements are secured to the eye bolts l3 and also are secured to and wound on an operating shaft I1 equipped at one end with a hand wheel l8 whereby the operator of the tractor may rotate the shaft IT in opposite. directions 15 for the purpose of raising and lowering the shields in accordance with the unevenness of the ground over which the gangs of cultivators are passing.

A supporting bracket l9 consists of plates 20 and 2| detachably and adjustably connected by bolts 22 and having notches 23 in the opposed faces thereof to receive a post 24 or some other part on the tractor. The post 24 acts as a support for the usual steering mechanism of the 25 tractor, as clearly shown in Figure 2. The supporting bracket [9 is arranged transversely of the tractor and the plate 20 thereof is of substantially U shape and its end portion provides journals for the shaft IT. The bracket l9 sup- 30 ports the shaft ll transversely of the tractor with the hand wheel l8 to one side of the steering wheel of the tractor so that the operator may easily reach the hand wheel l8 for the purpose of rotating the shaft I! in opposite direc- 35 tions to raise and lower the shields.

A grooved collar 25 is secured on the shaft l1 and the hook-shaped portion 26 of a tension rod 21 engages in the groove of said collar. The tension rod 21 is slidably mounted in the plate 20 of the bracket l9 and has threaded thereon a nut 28. A coil spring 29 is mounted on the rod 21 and bears against the plate 20 and the nut 28 and acts to draw the hook-shaped portion 26 tightly against the collar 25 to prevent accidental rotation of the shaft I1 and consequently brings about securing of the shields in any of their adjusted positions. This construction will permit the operator to readily adjust the shields to any desired height whenever desired by simply turning the hand wheel l8. The tension of the spring 29 may be increased and decreased by adjusting the nut 28 on the rod 21.

It is believed that the foregoing description, when taken in connection with the drawings will fully set forth the construction and advantages of this invention to those skilled in the art to which such invention re1ates, so that further detailed description will not be required.

Having thus described my invention, what I claim is:

In a device of the character set forth, a mac-- tor cultivator including gangs of cultivating elements and shields therefor arranged in pairs, brackets connected to said shields, flexible elements connected to said brackets, brackets mounted on said tractor cultivator, pulleys carby the last-named bracket, and a spring means 10 acting on said rod to tension said shaft.

WALTER ADAMS. 

